This is very suspicious. This is not a window manager issue, then.
What if you removed the nvidia driver (via "additional drivers")
completely so that you use the open-source drivers instead? Does the
issue pursue? If so, does this issue affect windows/another OS?
** Changed in: compiz-core
Status: New => Incomplete
** Changed in: compiz (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/757486
Title:
Severe visual distortion in unity desktop
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